Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Sony MemoryStick Pro storage support |
| 3 | * |
| 4 | * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * Special thanks to Carlos Corbacho for providing various MemoryStick cards |
| 11 | * that made this driver possible. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #include <linux/blkdev.h> |
| 16 | #include <linux/idr.h> |
| 17 | #include <linux/hdreg.h> |
| 18 | #include <linux/kthread.h> |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 19 | #include <linux/delay.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 20 | #include <linux/slab.h> |
Arnd Bergmann | 2a48fc0 | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 21 | #include <linux/mutex.h> |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 22 | #include <linux/memstick.h> |
Paul Gortmaker | c47e789 | 2011-07-03 15:12:37 -0400 | [diff] [blame] | 23 | #include <linux/module.h> |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 24 | |
| 25 | #define DRIVER_NAME "mspro_block" |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 26 | |
| 27 | static int major; |
| 28 | module_param(major, int, 0644); |
| 29 | |
| 30 | #define MSPRO_BLOCK_MAX_SEGS 32 |
| 31 | #define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1) |
| 32 | |
| 33 | #define MSPRO_BLOCK_SIGNATURE 0xa5c3 |
| 34 | #define MSPRO_BLOCK_MAX_ATTRIBUTES 41 |
| 35 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 36 | #define MSPRO_BLOCK_PART_SHIFT 3 |
| 37 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 38 | enum { |
| 39 | MSPRO_BLOCK_ID_SYSINFO = 0x10, |
| 40 | MSPRO_BLOCK_ID_MODELNAME = 0x15, |
| 41 | MSPRO_BLOCK_ID_MBR = 0x20, |
| 42 | MSPRO_BLOCK_ID_PBR16 = 0x21, |
| 43 | MSPRO_BLOCK_ID_PBR32 = 0x22, |
| 44 | MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25, |
| 45 | MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26, |
| 46 | MSPRO_BLOCK_ID_DEVINFO = 0x30 |
| 47 | }; |
| 48 | |
| 49 | struct mspro_sys_attr { |
| 50 | size_t size; |
| 51 | void *data; |
| 52 | unsigned char id; |
| 53 | char name[32]; |
| 54 | struct device_attribute dev_attr; |
| 55 | }; |
| 56 | |
| 57 | struct mspro_attr_entry { |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 58 | __be32 address; |
| 59 | __be32 size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 60 | unsigned char id; |
| 61 | unsigned char reserved[3]; |
| 62 | } __attribute__((packed)); |
| 63 | |
| 64 | struct mspro_attribute { |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 65 | __be16 signature; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 66 | unsigned short version; |
| 67 | unsigned char count; |
| 68 | unsigned char reserved[11]; |
| 69 | struct mspro_attr_entry entries[]; |
| 70 | } __attribute__((packed)); |
| 71 | |
| 72 | struct mspro_sys_info { |
| 73 | unsigned char class; |
| 74 | unsigned char reserved0; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 75 | __be16 block_size; |
| 76 | __be16 block_count; |
| 77 | __be16 user_block_count; |
| 78 | __be16 page_size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 79 | unsigned char reserved1[2]; |
| 80 | unsigned char assembly_date[8]; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 81 | __be32 serial_number; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 82 | unsigned char assembly_maker_code; |
| 83 | unsigned char assembly_model_code[3]; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 84 | __be16 memory_maker_code; |
| 85 | __be16 memory_model_code; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 86 | unsigned char reserved2[4]; |
| 87 | unsigned char vcc; |
| 88 | unsigned char vpp; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 89 | __be16 controller_number; |
| 90 | __be16 controller_function; |
| 91 | __be16 start_sector; |
| 92 | __be16 unit_size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 93 | unsigned char ms_sub_class; |
| 94 | unsigned char reserved3[4]; |
| 95 | unsigned char interface_type; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 96 | __be16 controller_code; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 97 | unsigned char format_type; |
| 98 | unsigned char reserved4; |
| 99 | unsigned char device_type; |
| 100 | unsigned char reserved5[7]; |
| 101 | unsigned char mspro_id[16]; |
| 102 | unsigned char reserved6[16]; |
| 103 | } __attribute__((packed)); |
| 104 | |
| 105 | struct mspro_mbr { |
| 106 | unsigned char boot_partition; |
| 107 | unsigned char start_head; |
| 108 | unsigned char start_sector; |
| 109 | unsigned char start_cylinder; |
| 110 | unsigned char partition_type; |
| 111 | unsigned char end_head; |
| 112 | unsigned char end_sector; |
| 113 | unsigned char end_cylinder; |
| 114 | unsigned int start_sectors; |
| 115 | unsigned int sectors_per_partition; |
| 116 | } __attribute__((packed)); |
| 117 | |
Alex Dubov | efb2742 | 2008-03-10 11:43:41 -0700 | [diff] [blame] | 118 | struct mspro_specfile { |
| 119 | char name[8]; |
| 120 | char ext[3]; |
| 121 | unsigned char attr; |
| 122 | unsigned char reserved[10]; |
| 123 | unsigned short time; |
| 124 | unsigned short date; |
| 125 | unsigned short cluster; |
| 126 | unsigned int size; |
| 127 | } __attribute__((packed)); |
| 128 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 129 | struct mspro_devinfo { |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 130 | __be16 cylinders; |
| 131 | __be16 heads; |
| 132 | __be16 bytes_per_track; |
| 133 | __be16 bytes_per_sector; |
| 134 | __be16 sectors_per_track; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 135 | unsigned char reserved[6]; |
| 136 | } __attribute__((packed)); |
| 137 | |
| 138 | struct mspro_block_data { |
| 139 | struct memstick_dev *card; |
| 140 | unsigned int usage_count; |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 141 | unsigned int caps; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 142 | struct gendisk *disk; |
| 143 | struct request_queue *queue; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 144 | struct request *block_req; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 145 | spinlock_t q_lock; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 146 | |
| 147 | unsigned short page_size; |
| 148 | unsigned short cylinders; |
| 149 | unsigned short heads; |
| 150 | unsigned short sectors_per_track; |
| 151 | |
| 152 | unsigned char system; |
| 153 | unsigned char read_only:1, |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 154 | eject:1, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 155 | has_request:1, |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 156 | data_dir:1, |
| 157 | active:1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 158 | unsigned char transfer_cmd; |
| 159 | |
| 160 | int (*mrq_handler)(struct memstick_dev *card, |
| 161 | struct memstick_request **mrq); |
| 162 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 163 | |
| 164 | /* Default request setup function for data access method preferred by |
| 165 | * this host instance. |
| 166 | */ |
| 167 | void (*setup_transfer)(struct memstick_dev *card, |
| 168 | u64 offset, size_t length); |
| 169 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 170 | struct attribute_group attr_group; |
| 171 | |
| 172 | struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS]; |
| 173 | unsigned int seg_count; |
| 174 | unsigned int current_seg; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 175 | unsigned int current_page; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 176 | }; |
| 177 | |
| 178 | static DEFINE_IDR(mspro_block_disk_idr); |
| 179 | static DEFINE_MUTEX(mspro_block_disk_lock); |
| 180 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 181 | static int mspro_block_complete_req(struct memstick_dev *card, int error); |
| 182 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 183 | /*** Block device ***/ |
| 184 | |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 185 | static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 186 | { |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 187 | struct gendisk *disk = bdev->bd_disk; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 188 | struct mspro_block_data *msb = disk->private_data; |
| 189 | int rc = -ENXIO; |
| 190 | |
| 191 | mutex_lock(&mspro_block_disk_lock); |
| 192 | |
| 193 | if (msb && msb->card) { |
| 194 | msb->usage_count++; |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 195 | if ((mode & FMODE_WRITE) && msb->read_only) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 196 | rc = -EROFS; |
| 197 | else |
| 198 | rc = 0; |
| 199 | } |
| 200 | |
| 201 | mutex_unlock(&mspro_block_disk_lock); |
| 202 | |
| 203 | return rc; |
| 204 | } |
| 205 | |
| 206 | |
Al Viro | db2a144 | 2013-05-05 21:52:57 -0400 | [diff] [blame] | 207 | static void mspro_block_disk_release(struct gendisk *disk) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 208 | { |
| 209 | struct mspro_block_data *msb = disk->private_data; |
Tejun Heo | f331c02 | 2008-09-03 09:01:48 +0200 | [diff] [blame] | 210 | int disk_id = MINOR(disk_devt(disk)) >> MSPRO_BLOCK_PART_SHIFT; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 211 | |
| 212 | mutex_lock(&mspro_block_disk_lock); |
| 213 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 214 | if (msb) { |
| 215 | if (msb->usage_count) |
| 216 | msb->usage_count--; |
| 217 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 218 | if (!msb->usage_count) { |
| 219 | kfree(msb); |
| 220 | disk->private_data = NULL; |
| 221 | idr_remove(&mspro_block_disk_idr, disk_id); |
| 222 | put_disk(disk); |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | mutex_unlock(&mspro_block_disk_lock); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 227 | } |
| 228 | |
Al Viro | db2a144 | 2013-05-05 21:52:57 -0400 | [diff] [blame] | 229 | static void mspro_block_bd_release(struct gendisk *disk, fmode_t mode) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 230 | { |
Al Viro | db2a144 | 2013-05-05 21:52:57 -0400 | [diff] [blame] | 231 | mspro_block_disk_release(disk); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | static int mspro_block_bd_getgeo(struct block_device *bdev, |
| 235 | struct hd_geometry *geo) |
| 236 | { |
| 237 | struct mspro_block_data *msb = bdev->bd_disk->private_data; |
| 238 | |
| 239 | geo->heads = msb->heads; |
| 240 | geo->sectors = msb->sectors_per_track; |
| 241 | geo->cylinders = msb->cylinders; |
| 242 | |
| 243 | return 0; |
| 244 | } |
| 245 | |
Alexey Dobriyan | 83d5cde | 2009-09-21 17:01:13 -0700 | [diff] [blame] | 246 | static const struct block_device_operations ms_block_bdops = { |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 247 | .open = mspro_block_bd_open, |
| 248 | .release = mspro_block_bd_release, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 249 | .getgeo = mspro_block_bd_getgeo, |
| 250 | .owner = THIS_MODULE |
| 251 | }; |
| 252 | |
| 253 | /*** Information ***/ |
| 254 | |
| 255 | static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr) |
| 256 | { |
| 257 | struct device_attribute *dev_attr |
| 258 | = container_of(attr, struct device_attribute, attr); |
| 259 | return container_of(dev_attr, struct mspro_sys_attr, dev_attr); |
| 260 | } |
| 261 | |
| 262 | static const char *mspro_block_attr_name(unsigned char tag) |
| 263 | { |
| 264 | switch (tag) { |
| 265 | case MSPRO_BLOCK_ID_SYSINFO: |
| 266 | return "attr_sysinfo"; |
| 267 | case MSPRO_BLOCK_ID_MODELNAME: |
| 268 | return "attr_modelname"; |
| 269 | case MSPRO_BLOCK_ID_MBR: |
| 270 | return "attr_mbr"; |
| 271 | case MSPRO_BLOCK_ID_PBR16: |
| 272 | return "attr_pbr16"; |
| 273 | case MSPRO_BLOCK_ID_PBR32: |
| 274 | return "attr_pbr32"; |
| 275 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
| 276 | return "attr_specfilevalues1"; |
| 277 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: |
| 278 | return "attr_specfilevalues2"; |
| 279 | case MSPRO_BLOCK_ID_DEVINFO: |
| 280 | return "attr_devinfo"; |
| 281 | default: |
| 282 | return NULL; |
| 283 | }; |
| 284 | } |
| 285 | |
| 286 | typedef ssize_t (*sysfs_show_t)(struct device *dev, |
| 287 | struct device_attribute *attr, |
| 288 | char *buffer); |
| 289 | |
| 290 | static ssize_t mspro_block_attr_show_default(struct device *dev, |
| 291 | struct device_attribute *attr, |
| 292 | char *buffer) |
| 293 | { |
| 294 | struct mspro_sys_attr *s_attr = container_of(attr, |
| 295 | struct mspro_sys_attr, |
| 296 | dev_attr); |
| 297 | |
| 298 | ssize_t cnt, rc = 0; |
| 299 | |
| 300 | for (cnt = 0; cnt < s_attr->size; cnt++) { |
| 301 | if (cnt && !(cnt % 16)) { |
| 302 | if (PAGE_SIZE - rc) |
| 303 | buffer[rc++] = '\n'; |
| 304 | } |
| 305 | |
| 306 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ", |
| 307 | ((unsigned char *)s_attr->data)[cnt]); |
| 308 | } |
| 309 | return rc; |
| 310 | } |
| 311 | |
| 312 | static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, |
| 313 | struct device_attribute *attr, |
| 314 | char *buffer) |
| 315 | { |
| 316 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 317 | struct mspro_sys_attr, |
| 318 | dev_attr); |
| 319 | struct mspro_sys_info *x_sys = x_attr->data; |
| 320 | ssize_t rc = 0; |
Alex Dubov | 251cc9b | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 321 | int date_tz = 0, date_tz_f = 0; |
| 322 | |
| 323 | if (x_sys->assembly_date[0] > 0x80U) { |
| 324 | date_tz = (~x_sys->assembly_date[0]) + 1; |
| 325 | date_tz_f = date_tz & 3; |
| 326 | date_tz >>= 2; |
| 327 | date_tz = -date_tz; |
| 328 | date_tz_f *= 15; |
| 329 | } else if (x_sys->assembly_date[0] < 0x80U) { |
| 330 | date_tz = x_sys->assembly_date[0]; |
| 331 | date_tz_f = date_tz & 3; |
| 332 | date_tz >>= 2; |
| 333 | date_tz_f *= 15; |
| 334 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 335 | |
| 336 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n", |
| 337 | x_sys->class); |
| 338 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n", |
| 339 | be16_to_cpu(x_sys->block_size)); |
| 340 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n", |
| 341 | be16_to_cpu(x_sys->block_count)); |
| 342 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n", |
| 343 | be16_to_cpu(x_sys->user_block_count)); |
| 344 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n", |
| 345 | be16_to_cpu(x_sys->page_size)); |
| 346 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: " |
Alex Dubov | 251cc9b | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 347 | "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n", |
| 348 | date_tz, date_tz_f, |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 349 | be16_to_cpup((__be16 *)&x_sys->assembly_date[1]), |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 350 | x_sys->assembly_date[3], x_sys->assembly_date[4], |
| 351 | x_sys->assembly_date[5], x_sys->assembly_date[6], |
| 352 | x_sys->assembly_date[7]); |
| 353 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n", |
| 354 | be32_to_cpu(x_sys->serial_number)); |
| 355 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, |
| 356 | "assembly maker code: %x\n", |
| 357 | x_sys->assembly_maker_code); |
| 358 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: " |
| 359 | "%02x%02x%02x\n", x_sys->assembly_model_code[0], |
| 360 | x_sys->assembly_model_code[1], |
| 361 | x_sys->assembly_model_code[2]); |
| 362 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n", |
| 363 | be16_to_cpu(x_sys->memory_maker_code)); |
| 364 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n", |
| 365 | be16_to_cpu(x_sys->memory_model_code)); |
| 366 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n", |
| 367 | x_sys->vcc); |
| 368 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n", |
| 369 | x_sys->vpp); |
| 370 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n", |
| 371 | be16_to_cpu(x_sys->controller_number)); |
| 372 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, |
| 373 | "controller function: %x\n", |
| 374 | be16_to_cpu(x_sys->controller_function)); |
| 375 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", |
| 376 | be16_to_cpu(x_sys->start_sector)); |
| 377 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n", |
| 378 | be16_to_cpu(x_sys->unit_size)); |
| 379 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n", |
| 380 | x_sys->ms_sub_class); |
| 381 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n", |
| 382 | x_sys->interface_type); |
| 383 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n", |
| 384 | be16_to_cpu(x_sys->controller_code)); |
| 385 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n", |
| 386 | x_sys->format_type); |
| 387 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n", |
| 388 | x_sys->device_type); |
| 389 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n", |
| 390 | x_sys->mspro_id); |
| 391 | return rc; |
| 392 | } |
| 393 | |
| 394 | static ssize_t mspro_block_attr_show_modelname(struct device *dev, |
| 395 | struct device_attribute *attr, |
| 396 | char *buffer) |
| 397 | { |
| 398 | struct mspro_sys_attr *s_attr = container_of(attr, |
| 399 | struct mspro_sys_attr, |
| 400 | dev_attr); |
| 401 | |
| 402 | return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data); |
| 403 | } |
| 404 | |
| 405 | static ssize_t mspro_block_attr_show_mbr(struct device *dev, |
| 406 | struct device_attribute *attr, |
| 407 | char *buffer) |
| 408 | { |
| 409 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 410 | struct mspro_sys_attr, |
| 411 | dev_attr); |
| 412 | struct mspro_mbr *x_mbr = x_attr->data; |
| 413 | ssize_t rc = 0; |
| 414 | |
| 415 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n", |
| 416 | x_mbr->boot_partition); |
| 417 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n", |
| 418 | x_mbr->start_head); |
| 419 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", |
| 420 | x_mbr->start_sector); |
| 421 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n", |
| 422 | x_mbr->start_cylinder); |
| 423 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n", |
| 424 | x_mbr->partition_type); |
| 425 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n", |
| 426 | x_mbr->end_head); |
| 427 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n", |
| 428 | x_mbr->end_sector); |
| 429 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n", |
| 430 | x_mbr->end_cylinder); |
| 431 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n", |
| 432 | x_mbr->start_sectors); |
| 433 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, |
| 434 | "sectors per partition: %x\n", |
| 435 | x_mbr->sectors_per_partition); |
| 436 | return rc; |
| 437 | } |
| 438 | |
Alex Dubov | efb2742 | 2008-03-10 11:43:41 -0700 | [diff] [blame] | 439 | static ssize_t mspro_block_attr_show_specfile(struct device *dev, |
| 440 | struct device_attribute *attr, |
| 441 | char *buffer) |
| 442 | { |
| 443 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 444 | struct mspro_sys_attr, |
| 445 | dev_attr); |
| 446 | struct mspro_specfile *x_spfile = x_attr->data; |
| 447 | char name[9], ext[4]; |
| 448 | ssize_t rc = 0; |
| 449 | |
| 450 | memcpy(name, x_spfile->name, 8); |
| 451 | name[8] = 0; |
| 452 | memcpy(ext, x_spfile->ext, 3); |
| 453 | ext[3] = 0; |
| 454 | |
| 455 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name); |
| 456 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext); |
| 457 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n", |
| 458 | x_spfile->attr); |
| 459 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n", |
| 460 | x_spfile->time >> 11, |
| 461 | (x_spfile->time >> 5) & 0x3f, |
| 462 | (x_spfile->time & 0x1f) * 2); |
| 463 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n", |
| 464 | (x_spfile->date >> 9) + 1980, |
| 465 | (x_spfile->date >> 5) & 0xf, |
| 466 | x_spfile->date & 0x1f); |
| 467 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n", |
| 468 | x_spfile->cluster); |
| 469 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n", |
| 470 | x_spfile->size); |
| 471 | return rc; |
| 472 | } |
| 473 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 474 | static ssize_t mspro_block_attr_show_devinfo(struct device *dev, |
| 475 | struct device_attribute *attr, |
| 476 | char *buffer) |
| 477 | { |
| 478 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 479 | struct mspro_sys_attr, |
| 480 | dev_attr); |
| 481 | struct mspro_devinfo *x_devinfo = x_attr->data; |
| 482 | ssize_t rc = 0; |
| 483 | |
| 484 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n", |
| 485 | be16_to_cpu(x_devinfo->cylinders)); |
| 486 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n", |
| 487 | be16_to_cpu(x_devinfo->heads)); |
| 488 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n", |
| 489 | be16_to_cpu(x_devinfo->bytes_per_track)); |
| 490 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n", |
| 491 | be16_to_cpu(x_devinfo->bytes_per_sector)); |
| 492 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n", |
| 493 | be16_to_cpu(x_devinfo->sectors_per_track)); |
| 494 | return rc; |
| 495 | } |
| 496 | |
| 497 | static sysfs_show_t mspro_block_attr_show(unsigned char tag) |
| 498 | { |
| 499 | switch (tag) { |
| 500 | case MSPRO_BLOCK_ID_SYSINFO: |
| 501 | return mspro_block_attr_show_sysinfo; |
| 502 | case MSPRO_BLOCK_ID_MODELNAME: |
| 503 | return mspro_block_attr_show_modelname; |
| 504 | case MSPRO_BLOCK_ID_MBR: |
| 505 | return mspro_block_attr_show_mbr; |
Alex Dubov | efb2742 | 2008-03-10 11:43:41 -0700 | [diff] [blame] | 506 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
| 507 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: |
| 508 | return mspro_block_attr_show_specfile; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 509 | case MSPRO_BLOCK_ID_DEVINFO: |
| 510 | return mspro_block_attr_show_devinfo; |
| 511 | default: |
| 512 | return mspro_block_attr_show_default; |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | /*** Protocol handlers ***/ |
| 517 | |
| 518 | /* |
| 519 | * Functions prefixed with "h_" are protocol callbacks. They can be called from |
| 520 | * interrupt context. Return value of 0 means that request processing is still |
| 521 | * ongoing, while special error value of -EAGAIN means that current request is |
| 522 | * finished (and request processor should come back some time later). |
| 523 | */ |
| 524 | |
| 525 | static int h_mspro_block_req_init(struct memstick_dev *card, |
| 526 | struct memstick_request **mrq) |
| 527 | { |
| 528 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 529 | |
| 530 | *mrq = &card->current_mrq; |
| 531 | card->next_request = msb->mrq_handler; |
| 532 | return 0; |
| 533 | } |
| 534 | |
| 535 | static int h_mspro_block_default(struct memstick_dev *card, |
| 536 | struct memstick_request **mrq) |
| 537 | { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 538 | return mspro_block_complete_req(card, (*mrq)->error); |
| 539 | } |
| 540 | |
| 541 | static int h_mspro_block_default_bad(struct memstick_dev *card, |
| 542 | struct memstick_request **mrq) |
| 543 | { |
| 544 | return -ENXIO; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 545 | } |
| 546 | |
| 547 | static int h_mspro_block_get_ro(struct memstick_dev *card, |
| 548 | struct memstick_request **mrq) |
| 549 | { |
| 550 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 551 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 552 | if (!(*mrq)->error) { |
| 553 | if ((*mrq)->data[offsetof(struct ms_status_register, status0)] |
| 554 | & MEMSTICK_STATUS0_WP) |
| 555 | msb->read_only = 1; |
| 556 | else |
| 557 | msb->read_only = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 558 | } |
| 559 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 560 | return mspro_block_complete_req(card, (*mrq)->error); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 561 | } |
| 562 | |
| 563 | static int h_mspro_block_wait_for_ced(struct memstick_dev *card, |
| 564 | struct memstick_request **mrq) |
| 565 | { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 566 | dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]); |
| 567 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 568 | if (!(*mrq)->error) { |
| 569 | if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) |
| 570 | (*mrq)->error = -EFAULT; |
| 571 | else if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) |
| 572 | return 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 573 | } |
| 574 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 575 | return mspro_block_complete_req(card, (*mrq)->error); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | static int h_mspro_block_transfer_data(struct memstick_dev *card, |
| 579 | struct memstick_request **mrq) |
| 580 | { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 581 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 582 | unsigned char t_val = 0; |
| 583 | struct scatterlist t_sg = { 0 }; |
| 584 | size_t t_offset; |
| 585 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 586 | if ((*mrq)->error) |
| 587 | return mspro_block_complete_req(card, (*mrq)->error); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 588 | |
| 589 | switch ((*mrq)->tpc) { |
| 590 | case MS_TPC_WRITE_REG: |
| 591 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 592 | (*mrq)->need_card_int = 1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 593 | return 0; |
| 594 | case MS_TPC_SET_CMD: |
| 595 | t_val = (*mrq)->int_reg; |
| 596 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 597 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 598 | goto has_int_reg; |
| 599 | return 0; |
| 600 | case MS_TPC_GET_INT: |
| 601 | t_val = (*mrq)->data[0]; |
| 602 | has_int_reg: |
| 603 | if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) { |
| 604 | t_val = MSPRO_CMD_STOP; |
| 605 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1); |
| 606 | card->next_request = h_mspro_block_default; |
| 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | if (msb->current_page |
| 611 | == (msb->req_sg[msb->current_seg].length |
| 612 | / msb->page_size)) { |
| 613 | msb->current_page = 0; |
| 614 | msb->current_seg++; |
| 615 | |
| 616 | if (msb->current_seg == msb->seg_count) { |
| 617 | if (t_val & MEMSTICK_INT_CED) { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 618 | return mspro_block_complete_req(card, |
| 619 | 0); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 620 | } else { |
| 621 | card->next_request |
| 622 | = h_mspro_block_wait_for_ced; |
| 623 | memstick_init_req(*mrq, MS_TPC_GET_INT, |
| 624 | NULL, 1); |
| 625 | return 0; |
| 626 | } |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | if (!(t_val & MEMSTICK_INT_BREQ)) { |
| 631 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); |
| 632 | return 0; |
| 633 | } |
| 634 | |
| 635 | t_offset = msb->req_sg[msb->current_seg].offset; |
| 636 | t_offset += msb->current_page * msb->page_size; |
| 637 | |
| 638 | sg_set_page(&t_sg, |
| 639 | nth_page(sg_page(&(msb->req_sg[msb->current_seg])), |
| 640 | t_offset >> PAGE_SHIFT), |
| 641 | msb->page_size, offset_in_page(t_offset)); |
| 642 | |
| 643 | memstick_init_req_sg(*mrq, msb->data_dir == READ |
| 644 | ? MS_TPC_READ_LONG_DATA |
| 645 | : MS_TPC_WRITE_LONG_DATA, |
| 646 | &t_sg); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 647 | (*mrq)->need_card_int = 1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 648 | return 0; |
| 649 | case MS_TPC_READ_LONG_DATA: |
| 650 | case MS_TPC_WRITE_LONG_DATA: |
| 651 | msb->current_page++; |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 652 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 653 | t_val = (*mrq)->int_reg; |
| 654 | goto has_int_reg; |
| 655 | } else { |
| 656 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); |
| 657 | return 0; |
| 658 | } |
| 659 | |
| 660 | default: |
| 661 | BUG(); |
| 662 | } |
| 663 | } |
| 664 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 665 | /*** Transfer setup functions for different access methods. ***/ |
| 666 | |
| 667 | /** Setup data transfer request for SET_CMD TPC with arguments in card |
| 668 | * registers. |
| 669 | * |
| 670 | * @card Current media instance |
| 671 | * @offset Target data offset in bytes |
| 672 | * @length Required transfer length in bytes. |
| 673 | */ |
| 674 | static void h_mspro_block_setup_cmd(struct memstick_dev *card, u64 offset, |
| 675 | size_t length) |
| 676 | { |
| 677 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 678 | struct mspro_param_register param = { |
| 679 | .system = msb->system, |
| 680 | .data_count = cpu_to_be16((uint16_t)(length / msb->page_size)), |
| 681 | /* ISO C90 warning precludes direct initialization for now. */ |
| 682 | .data_address = 0, |
| 683 | .tpc_param = 0 |
| 684 | }; |
| 685 | |
| 686 | do_div(offset, msb->page_size); |
| 687 | param.data_address = cpu_to_be32((uint32_t)offset); |
| 688 | |
| 689 | card->next_request = h_mspro_block_req_init; |
| 690 | msb->mrq_handler = h_mspro_block_transfer_data; |
| 691 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, |
| 692 | ¶m, sizeof(param)); |
| 693 | } |
| 694 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 695 | /*** Data transfer ***/ |
| 696 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 697 | static int mspro_block_issue_req(struct memstick_dev *card, int chunk) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 698 | { |
| 699 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 700 | u64 t_off; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 701 | unsigned int count; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 702 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 703 | try_again: |
| 704 | while (chunk) { |
| 705 | msb->current_page = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 706 | msb->current_seg = 0; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 707 | msb->seg_count = blk_rq_map_sg(msb->block_req->q, |
| 708 | msb->block_req, |
| 709 | msb->req_sg); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 710 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 711 | if (!msb->seg_count) { |
Tejun Heo | 296b2f6 | 2009-05-08 11:54:15 +0900 | [diff] [blame] | 712 | chunk = __blk_end_request_cur(msb->block_req, -ENOMEM); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 713 | continue; |
| 714 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 715 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 716 | t_off = blk_rq_pos(msb->block_req); |
| 717 | t_off <<= 9; |
Tejun Heo | 1011c1b | 2009-05-07 22:24:45 +0900 | [diff] [blame] | 718 | count = blk_rq_bytes(msb->block_req); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 719 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 720 | msb->setup_transfer(card, t_off, count); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 721 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 722 | msb->data_dir = rq_data_dir(msb->block_req); |
| 723 | msb->transfer_cmd = msb->data_dir == READ |
| 724 | ? MSPRO_CMD_READ_DATA |
| 725 | : MSPRO_CMD_WRITE_DATA; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 726 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 727 | memstick_new_req(card->host); |
| 728 | return 0; |
| 729 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 730 | |
Tejun Heo | 9934c8c | 2009-05-08 11:54:16 +0900 | [diff] [blame] | 731 | dev_dbg(&card->dev, "blk_fetch\n"); |
| 732 | msb->block_req = blk_fetch_request(msb->queue); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 733 | if (!msb->block_req) { |
| 734 | dev_dbg(&card->dev, "issue end\n"); |
| 735 | return -EAGAIN; |
| 736 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 737 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 738 | dev_dbg(&card->dev, "trying again\n"); |
| 739 | chunk = 1; |
| 740 | goto try_again; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 741 | } |
| 742 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 743 | static int mspro_block_complete_req(struct memstick_dev *card, int error) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 744 | { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 745 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 746 | int chunk, cnt; |
| 747 | unsigned int t_len = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 748 | unsigned long flags; |
| 749 | |
| 750 | spin_lock_irqsave(&msb->q_lock, flags); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 751 | dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, |
| 752 | error); |
| 753 | |
| 754 | if (msb->has_request) { |
| 755 | /* Nothing to do - not really an error */ |
| 756 | if (error == -EAGAIN) |
| 757 | error = 0; |
| 758 | |
| 759 | if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { |
| 760 | if (msb->data_dir == READ) { |
| 761 | for (cnt = 0; cnt < msb->current_seg; cnt++) |
| 762 | t_len += msb->req_sg[cnt].length |
| 763 | / msb->page_size; |
| 764 | |
| 765 | if (msb->current_page) |
| 766 | t_len += msb->current_page - 1; |
| 767 | |
| 768 | t_len *= msb->page_size; |
| 769 | } |
| 770 | } else |
Tejun Heo | 1011c1b | 2009-05-07 22:24:45 +0900 | [diff] [blame] | 771 | t_len = blk_rq_bytes(msb->block_req); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 772 | |
| 773 | dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); |
| 774 | |
| 775 | if (error && !t_len) |
| 776 | t_len = blk_rq_cur_bytes(msb->block_req); |
| 777 | |
| 778 | chunk = __blk_end_request(msb->block_req, error, t_len); |
| 779 | |
| 780 | error = mspro_block_issue_req(card, chunk); |
| 781 | |
| 782 | if (!error) |
| 783 | goto out; |
| 784 | else |
| 785 | msb->has_request = 0; |
| 786 | } else { |
| 787 | if (!error) |
| 788 | error = -EAGAIN; |
| 789 | } |
| 790 | |
| 791 | card->next_request = h_mspro_block_default_bad; |
| 792 | complete_all(&card->mrq_complete); |
| 793 | out: |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 794 | spin_unlock_irqrestore(&msb->q_lock, flags); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 795 | return error; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 796 | } |
| 797 | |
Alex Dubov | 17017d8 | 2008-07-25 19:45:01 -0700 | [diff] [blame] | 798 | static void mspro_block_stop(struct memstick_dev *card) |
| 799 | { |
| 800 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 801 | int rc = 0; |
| 802 | unsigned long flags; |
| 803 | |
| 804 | while (1) { |
| 805 | spin_lock_irqsave(&msb->q_lock, flags); |
| 806 | if (!msb->has_request) { |
| 807 | blk_stop_queue(msb->queue); |
| 808 | rc = 1; |
| 809 | } |
| 810 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 811 | |
| 812 | if (rc) |
| 813 | break; |
| 814 | |
| 815 | wait_for_completion(&card->mrq_complete); |
| 816 | } |
| 817 | } |
| 818 | |
| 819 | static void mspro_block_start(struct memstick_dev *card) |
| 820 | { |
| 821 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 822 | unsigned long flags; |
| 823 | |
| 824 | spin_lock_irqsave(&msb->q_lock, flags); |
| 825 | blk_start_queue(msb->queue); |
| 826 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 827 | } |
| 828 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 829 | static int mspro_block_prepare_req(struct request_queue *q, struct request *req) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 830 | { |
Christoph Hellwig | 33659eb | 2010-08-07 18:17:56 +0200 | [diff] [blame] | 831 | if (req->cmd_type != REQ_TYPE_FS && |
| 832 | req->cmd_type != REQ_TYPE_BLOCK_PC) { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 833 | blk_dump_rq_flags(req, "MSPro unsupported request"); |
| 834 | return BLKPREP_KILL; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 835 | } |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 836 | |
| 837 | req->cmd_flags |= REQ_DONTPREP; |
| 838 | |
| 839 | return BLKPREP_OK; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 840 | } |
| 841 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 842 | static void mspro_block_submit_req(struct request_queue *q) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 843 | { |
| 844 | struct memstick_dev *card = q->queuedata; |
| 845 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 846 | struct request *req = NULL; |
| 847 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 848 | if (msb->has_request) |
| 849 | return; |
| 850 | |
| 851 | if (msb->eject) { |
Tejun Heo | 9934c8c | 2009-05-08 11:54:16 +0900 | [diff] [blame] | 852 | while ((req = blk_fetch_request(q)) != NULL) |
Tejun Heo | 40cbbb7 | 2009-04-23 11:05:19 +0900 | [diff] [blame] | 853 | __blk_end_request_all(req, -ENODEV); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 854 | |
| 855 | return; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 856 | } |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 857 | |
| 858 | msb->has_request = 1; |
| 859 | if (mspro_block_issue_req(card, 0)) |
| 860 | msb->has_request = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | /*** Initialization ***/ |
| 864 | |
| 865 | static int mspro_block_wait_for_ced(struct memstick_dev *card) |
| 866 | { |
| 867 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 868 | |
| 869 | card->next_request = h_mspro_block_req_init; |
| 870 | msb->mrq_handler = h_mspro_block_wait_for_ced; |
| 871 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); |
| 872 | memstick_new_req(card->host); |
| 873 | wait_for_completion(&card->mrq_complete); |
| 874 | return card->current_mrq.error; |
| 875 | } |
| 876 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 877 | static int mspro_block_set_interface(struct memstick_dev *card, |
| 878 | unsigned char sys_reg) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 879 | { |
| 880 | struct memstick_host *host = card->host; |
| 881 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 882 | struct mspro_param_register param = { |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 883 | .system = sys_reg, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 884 | .data_count = 0, |
| 885 | .data_address = 0, |
Alex Dubov | e1f1999 | 2008-03-10 11:43:37 -0700 | [diff] [blame] | 886 | .tpc_param = 0 |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 887 | }; |
| 888 | |
| 889 | card->next_request = h_mspro_block_req_init; |
| 890 | msb->mrq_handler = h_mspro_block_default; |
| 891 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, |
| 892 | sizeof(param)); |
| 893 | memstick_new_req(host); |
| 894 | wait_for_completion(&card->mrq_complete); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 895 | return card->current_mrq.error; |
| 896 | } |
| 897 | |
| 898 | static int mspro_block_switch_interface(struct memstick_dev *card) |
| 899 | { |
| 900 | struct memstick_host *host = card->host; |
| 901 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 902 | int rc = 0; |
| 903 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 904 | try_again: |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 905 | if (msb->caps & MEMSTICK_CAP_PAR4) |
| 906 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR4); |
| 907 | else |
| 908 | return 0; |
| 909 | |
| 910 | if (rc) { |
| 911 | printk(KERN_WARNING |
| 912 | "%s: could not switch to 4-bit mode, error %d\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 913 | dev_name(&card->dev), rc); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 914 | return 0; |
| 915 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 916 | |
Alex Dubov | e1f1999 | 2008-03-10 11:43:37 -0700 | [diff] [blame] | 917 | msb->system = MEMSTICK_SYS_PAR4; |
| 918 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 919 | printk(KERN_INFO "%s: switching to 4-bit parallel mode\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 920 | dev_name(&card->dev)); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 921 | |
| 922 | if (msb->caps & MEMSTICK_CAP_PAR8) { |
| 923 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR8); |
| 924 | |
| 925 | if (!rc) { |
| 926 | msb->system = MEMSTICK_SYS_PAR8; |
| 927 | host->set_param(host, MEMSTICK_INTERFACE, |
| 928 | MEMSTICK_PAR8); |
| 929 | printk(KERN_INFO |
| 930 | "%s: switching to 8-bit parallel mode\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 931 | dev_name(&card->dev)); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 932 | } else |
| 933 | printk(KERN_WARNING |
| 934 | "%s: could not switch to 8-bit mode, error %d\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 935 | dev_name(&card->dev), rc); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 936 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 937 | |
| 938 | card->next_request = h_mspro_block_req_init; |
| 939 | msb->mrq_handler = h_mspro_block_default; |
| 940 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); |
| 941 | memstick_new_req(card->host); |
| 942 | wait_for_completion(&card->mrq_complete); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 943 | rc = card->current_mrq.error; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 944 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 945 | if (rc) { |
| 946 | printk(KERN_WARNING |
| 947 | "%s: interface error, trying to fall back to serial\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 948 | dev_name(&card->dev)); |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 949 | msb->system = MEMSTICK_SYS_SERIAL; |
| 950 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 951 | msleep(10); |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 952 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 953 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 954 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 955 | rc = memstick_set_rw_addr(card); |
| 956 | if (!rc) |
| 957 | rc = mspro_block_set_interface(card, msb->system); |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 958 | |
| 959 | if (!rc) { |
| 960 | msleep(150); |
| 961 | rc = mspro_block_wait_for_ced(card); |
| 962 | if (rc) |
| 963 | return rc; |
| 964 | |
| 965 | if (msb->caps & MEMSTICK_CAP_PAR8) { |
| 966 | msb->caps &= ~MEMSTICK_CAP_PAR8; |
| 967 | goto try_again; |
| 968 | } |
| 969 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 970 | } |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 971 | return rc; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 972 | } |
| 973 | |
| 974 | /* Memory allocated for attributes by this function should be freed by |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 975 | * mspro_block_data_clear, no matter if the initialization process succeeded |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 976 | * or failed. |
| 977 | */ |
| 978 | static int mspro_block_read_attributes(struct memstick_dev *card) |
| 979 | { |
| 980 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 981 | struct mspro_attribute *attr = NULL; |
| 982 | struct mspro_sys_attr *s_attr = NULL; |
| 983 | unsigned char *buffer = NULL; |
| 984 | int cnt, rc, attr_count; |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 985 | /* While normally physical device offsets, represented here by |
| 986 | * attr_offset and attr_len will be of large numeric types, we can be |
| 987 | * sure, that attributes are close enough to the beginning of the |
| 988 | * device, to save ourselves some trouble. |
| 989 | */ |
| 990 | unsigned int addr, attr_offset = 0, attr_len = msb->page_size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 991 | |
| 992 | attr = kmalloc(msb->page_size, GFP_KERNEL); |
| 993 | if (!attr) |
| 994 | return -ENOMEM; |
| 995 | |
| 996 | sg_init_one(&msb->req_sg[0], attr, msb->page_size); |
| 997 | msb->seg_count = 1; |
| 998 | msb->current_seg = 0; |
| 999 | msb->current_page = 0; |
| 1000 | msb->data_dir = READ; |
| 1001 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; |
| 1002 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1003 | msb->setup_transfer(card, attr_offset, attr_len); |
| 1004 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1005 | memstick_new_req(card->host); |
| 1006 | wait_for_completion(&card->mrq_complete); |
| 1007 | if (card->current_mrq.error) { |
| 1008 | rc = card->current_mrq.error; |
| 1009 | goto out_free_attr; |
| 1010 | } |
| 1011 | |
| 1012 | if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) { |
| 1013 | printk(KERN_ERR "%s: unrecognized device signature %x\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 1014 | dev_name(&card->dev), be16_to_cpu(attr->signature)); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1015 | rc = -ENODEV; |
| 1016 | goto out_free_attr; |
| 1017 | } |
| 1018 | |
| 1019 | if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) { |
| 1020 | printk(KERN_WARNING "%s: way too many attribute entries\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 1021 | dev_name(&card->dev)); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1022 | attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES; |
| 1023 | } else |
| 1024 | attr_count = attr->count; |
| 1025 | |
| 1026 | msb->attr_group.attrs = kzalloc((attr_count + 1) |
| 1027 | * sizeof(struct attribute), |
| 1028 | GFP_KERNEL); |
| 1029 | if (!msb->attr_group.attrs) { |
| 1030 | rc = -ENOMEM; |
| 1031 | goto out_free_attr; |
| 1032 | } |
| 1033 | msb->attr_group.name = "media_attributes"; |
| 1034 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1035 | buffer = kmalloc(attr_len, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1036 | if (!buffer) { |
| 1037 | rc = -ENOMEM; |
| 1038 | goto out_free_attr; |
| 1039 | } |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1040 | memcpy(buffer, (char *)attr, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1041 | |
| 1042 | for (cnt = 0; cnt < attr_count; ++cnt) { |
| 1043 | s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL); |
| 1044 | if (!s_attr) { |
| 1045 | rc = -ENOMEM; |
| 1046 | goto out_free_buffer; |
| 1047 | } |
| 1048 | |
| 1049 | msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr; |
| 1050 | addr = be32_to_cpu(attr->entries[cnt].address); |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1051 | s_attr->size = be32_to_cpu(attr->entries[cnt].size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1052 | dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, " |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1053 | "size %zx\n", cnt, attr->entries[cnt].id, addr, |
| 1054 | s_attr->size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1055 | s_attr->id = attr->entries[cnt].id; |
| 1056 | if (mspro_block_attr_name(s_attr->id)) |
| 1057 | snprintf(s_attr->name, sizeof(s_attr->name), "%s", |
| 1058 | mspro_block_attr_name(attr->entries[cnt].id)); |
| 1059 | else |
| 1060 | snprintf(s_attr->name, sizeof(s_attr->name), |
| 1061 | "attr_x%02x", attr->entries[cnt].id); |
| 1062 | |
Maxim Levitsky | 21fd049 | 2010-08-11 14:17:52 -0700 | [diff] [blame] | 1063 | sysfs_attr_init(&s_attr->dev_attr.attr); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1064 | s_attr->dev_attr.attr.name = s_attr->name; |
| 1065 | s_attr->dev_attr.attr.mode = S_IRUGO; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1066 | s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id); |
| 1067 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1068 | if (!s_attr->size) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1069 | continue; |
| 1070 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1071 | s_attr->data = kmalloc(s_attr->size, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1072 | if (!s_attr->data) { |
| 1073 | rc = -ENOMEM; |
| 1074 | goto out_free_buffer; |
| 1075 | } |
| 1076 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1077 | if (((addr / msb->page_size) == (attr_offset / msb->page_size)) |
| 1078 | && (((addr + s_attr->size - 1) / msb->page_size) |
| 1079 | == (attr_offset / msb->page_size))) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1080 | memcpy(s_attr->data, buffer + addr % msb->page_size, |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1081 | s_attr->size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1082 | continue; |
| 1083 | } |
| 1084 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1085 | attr_offset = (addr / msb->page_size) * msb->page_size; |
| 1086 | |
| 1087 | if ((attr_offset + attr_len) < (addr + s_attr->size)) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1088 | kfree(buffer); |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1089 | attr_len = (((addr + s_attr->size) / msb->page_size) |
| 1090 | + 1 ) * msb->page_size - attr_offset; |
| 1091 | buffer = kmalloc(attr_len, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1092 | if (!buffer) { |
| 1093 | rc = -ENOMEM; |
| 1094 | goto out_free_attr; |
| 1095 | } |
| 1096 | } |
| 1097 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1098 | sg_init_one(&msb->req_sg[0], buffer, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1099 | msb->seg_count = 1; |
| 1100 | msb->current_seg = 0; |
| 1101 | msb->current_page = 0; |
| 1102 | msb->data_dir = READ; |
| 1103 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; |
| 1104 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1105 | dev_dbg(&card->dev, "reading attribute range %x, %x\n", |
| 1106 | attr_offset, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1107 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1108 | msb->setup_transfer(card, attr_offset, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1109 | memstick_new_req(card->host); |
| 1110 | wait_for_completion(&card->mrq_complete); |
| 1111 | if (card->current_mrq.error) { |
| 1112 | rc = card->current_mrq.error; |
| 1113 | goto out_free_buffer; |
| 1114 | } |
| 1115 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1116 | memcpy(s_attr->data, buffer + addr % msb->page_size, |
| 1117 | s_attr->size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1118 | } |
| 1119 | |
| 1120 | rc = 0; |
| 1121 | out_free_buffer: |
| 1122 | kfree(buffer); |
| 1123 | out_free_attr: |
| 1124 | kfree(attr); |
| 1125 | return rc; |
| 1126 | } |
| 1127 | |
| 1128 | static int mspro_block_init_card(struct memstick_dev *card) |
| 1129 | { |
| 1130 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1131 | struct memstick_host *host = card->host; |
| 1132 | int rc = 0; |
| 1133 | |
Alex Dubov | e1f1999 | 2008-03-10 11:43:37 -0700 | [diff] [blame] | 1134 | msb->system = MEMSTICK_SYS_SERIAL; |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1135 | msb->setup_transfer = h_mspro_block_setup_cmd; |
| 1136 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1137 | card->reg_addr.r_offset = offsetof(struct mspro_register, status); |
| 1138 | card->reg_addr.r_length = sizeof(struct ms_status_register); |
| 1139 | card->reg_addr.w_offset = offsetof(struct mspro_register, param); |
| 1140 | card->reg_addr.w_length = sizeof(struct mspro_param_register); |
| 1141 | |
| 1142 | if (memstick_set_rw_addr(card)) |
| 1143 | return -EIO; |
| 1144 | |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 1145 | msb->caps = host->caps; |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1146 | |
| 1147 | msleep(150); |
| 1148 | rc = mspro_block_wait_for_ced(card); |
| 1149 | if (rc) |
| 1150 | return rc; |
| 1151 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 1152 | rc = mspro_block_switch_interface(card); |
| 1153 | if (rc) |
| 1154 | return rc; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1155 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1156 | dev_dbg(&card->dev, "card activated\n"); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 1157 | if (msb->system != MEMSTICK_SYS_SERIAL) |
| 1158 | msb->caps |= MEMSTICK_CAP_AUTO_GET_INT; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1159 | |
| 1160 | card->next_request = h_mspro_block_req_init; |
| 1161 | msb->mrq_handler = h_mspro_block_get_ro; |
| 1162 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL, |
| 1163 | sizeof(struct ms_status_register)); |
| 1164 | memstick_new_req(card->host); |
| 1165 | wait_for_completion(&card->mrq_complete); |
| 1166 | if (card->current_mrq.error) |
| 1167 | return card->current_mrq.error; |
| 1168 | |
| 1169 | dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1); |
| 1170 | |
| 1171 | msb->page_size = 512; |
| 1172 | rc = mspro_block_read_attributes(card); |
| 1173 | if (rc) |
| 1174 | return rc; |
| 1175 | |
| 1176 | dev_dbg(&card->dev, "attributes loaded\n"); |
| 1177 | return 0; |
| 1178 | |
| 1179 | } |
| 1180 | |
| 1181 | static int mspro_block_init_disk(struct memstick_dev *card) |
| 1182 | { |
| 1183 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1184 | struct memstick_host *host = card->host; |
| 1185 | struct mspro_devinfo *dev_info = NULL; |
| 1186 | struct mspro_sys_info *sys_info = NULL; |
| 1187 | struct mspro_sys_attr *s_attr = NULL; |
| 1188 | int rc, disk_id; |
| 1189 | u64 limit = BLK_BOUNCE_HIGH; |
| 1190 | unsigned long capacity; |
| 1191 | |
Greg Kroah-Hartman | c4c66cf | 2008-03-04 00:13:36 +0100 | [diff] [blame] | 1192 | if (host->dev.dma_mask && *(host->dev.dma_mask)) |
| 1193 | limit = *(host->dev.dma_mask); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1194 | |
| 1195 | for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { |
| 1196 | s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); |
| 1197 | |
| 1198 | if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO) |
| 1199 | dev_info = s_attr->data; |
| 1200 | else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO) |
| 1201 | sys_info = s_attr->data; |
| 1202 | } |
| 1203 | |
| 1204 | if (!dev_info || !sys_info) |
| 1205 | return -ENODEV; |
| 1206 | |
| 1207 | msb->cylinders = be16_to_cpu(dev_info->cylinders); |
| 1208 | msb->heads = be16_to_cpu(dev_info->heads); |
| 1209 | msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track); |
| 1210 | |
| 1211 | msb->page_size = be16_to_cpu(sys_info->unit_size); |
| 1212 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1213 | mutex_lock(&mspro_block_disk_lock); |
Tejun Heo | 7b51f47 | 2013-02-27 17:04:28 -0800 | [diff] [blame] | 1214 | disk_id = idr_alloc(&mspro_block_disk_idr, card, 0, 256, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1215 | mutex_unlock(&mspro_block_disk_lock); |
Tejun Heo | 7b51f47 | 2013-02-27 17:04:28 -0800 | [diff] [blame] | 1216 | if (disk_id < 0) |
| 1217 | return disk_id; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1218 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1219 | msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1220 | if (!msb->disk) { |
| 1221 | rc = -ENOMEM; |
| 1222 | goto out_release_id; |
| 1223 | } |
| 1224 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1225 | msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1226 | if (!msb->queue) { |
| 1227 | rc = -ENOMEM; |
| 1228 | goto out_put_disk; |
| 1229 | } |
| 1230 | |
| 1231 | msb->queue->queuedata = card; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1232 | blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1233 | |
| 1234 | blk_queue_bounce_limit(msb->queue, limit); |
Martin K. Petersen | 086fa5f | 2010-02-26 00:20:38 -0500 | [diff] [blame] | 1235 | blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); |
Martin K. Petersen | 8a78362 | 2010-02-26 00:20:39 -0500 | [diff] [blame] | 1236 | blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1237 | blk_queue_max_segment_size(msb->queue, |
| 1238 | MSPRO_BLOCK_MAX_PAGES * msb->page_size); |
| 1239 | |
| 1240 | msb->disk->major = major; |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1241 | msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1242 | msb->disk->fops = &ms_block_bdops; |
| 1243 | msb->usage_count = 1; |
| 1244 | msb->disk->private_data = msb; |
| 1245 | msb->disk->queue = msb->queue; |
| 1246 | msb->disk->driverfs_dev = &card->dev; |
| 1247 | |
| 1248 | sprintf(msb->disk->disk_name, "mspblk%d", disk_id); |
| 1249 | |
Martin K. Petersen | e1defc4 | 2009-05-22 17:17:49 -0400 | [diff] [blame] | 1250 | blk_queue_logical_block_size(msb->queue, msb->page_size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1251 | |
| 1252 | capacity = be16_to_cpu(sys_info->user_block_count); |
| 1253 | capacity *= be16_to_cpu(sys_info->block_size); |
| 1254 | capacity *= msb->page_size >> 9; |
| 1255 | set_capacity(msb->disk, capacity); |
| 1256 | dev_dbg(&card->dev, "capacity set %ld\n", capacity); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1257 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1258 | add_disk(msb->disk); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1259 | msb->active = 1; |
| 1260 | return 0; |
| 1261 | |
| 1262 | out_put_disk: |
| 1263 | put_disk(msb->disk); |
| 1264 | out_release_id: |
| 1265 | mutex_lock(&mspro_block_disk_lock); |
| 1266 | idr_remove(&mspro_block_disk_idr, disk_id); |
| 1267 | mutex_unlock(&mspro_block_disk_lock); |
| 1268 | return rc; |
| 1269 | } |
| 1270 | |
| 1271 | static void mspro_block_data_clear(struct mspro_block_data *msb) |
| 1272 | { |
| 1273 | int cnt; |
| 1274 | struct mspro_sys_attr *s_attr; |
| 1275 | |
| 1276 | if (msb->attr_group.attrs) { |
| 1277 | for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) { |
| 1278 | s_attr = mspro_from_sysfs_attr(msb->attr_group |
| 1279 | .attrs[cnt]); |
| 1280 | kfree(s_attr->data); |
| 1281 | kfree(s_attr); |
| 1282 | } |
| 1283 | kfree(msb->attr_group.attrs); |
| 1284 | } |
| 1285 | |
| 1286 | msb->card = NULL; |
| 1287 | } |
| 1288 | |
| 1289 | static int mspro_block_check_card(struct memstick_dev *card) |
| 1290 | { |
| 1291 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1292 | |
| 1293 | return (msb->active == 1); |
| 1294 | } |
| 1295 | |
| 1296 | static int mspro_block_probe(struct memstick_dev *card) |
| 1297 | { |
| 1298 | struct mspro_block_data *msb; |
| 1299 | int rc = 0; |
| 1300 | |
| 1301 | msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); |
| 1302 | if (!msb) |
| 1303 | return -ENOMEM; |
| 1304 | memstick_set_drvdata(card, msb); |
| 1305 | msb->card = card; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1306 | spin_lock_init(&msb->q_lock); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1307 | |
| 1308 | rc = mspro_block_init_card(card); |
| 1309 | |
| 1310 | if (rc) |
| 1311 | goto out_free; |
| 1312 | |
| 1313 | rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group); |
| 1314 | if (rc) |
| 1315 | goto out_free; |
| 1316 | |
| 1317 | rc = mspro_block_init_disk(card); |
| 1318 | if (!rc) { |
| 1319 | card->check = mspro_block_check_card; |
Alex Dubov | 17017d8 | 2008-07-25 19:45:01 -0700 | [diff] [blame] | 1320 | card->stop = mspro_block_stop; |
| 1321 | card->start = mspro_block_start; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1322 | return 0; |
| 1323 | } |
| 1324 | |
| 1325 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); |
| 1326 | out_free: |
| 1327 | memstick_set_drvdata(card, NULL); |
| 1328 | mspro_block_data_clear(msb); |
| 1329 | kfree(msb); |
| 1330 | return rc; |
| 1331 | } |
| 1332 | |
| 1333 | static void mspro_block_remove(struct memstick_dev *card) |
| 1334 | { |
| 1335 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1336 | unsigned long flags; |
| 1337 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1338 | spin_lock_irqsave(&msb->q_lock, flags); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1339 | msb->eject = 1; |
| 1340 | blk_start_queue(msb->queue); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1341 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 1342 | |
Maxim Levitsky | d862b13 | 2010-08-11 14:17:52 -0700 | [diff] [blame] | 1343 | del_gendisk(msb->disk); |
| 1344 | dev_dbg(&card->dev, "mspro block remove\n"); |
| 1345 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1346 | blk_cleanup_queue(msb->queue); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1347 | msb->queue = NULL; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1348 | |
| 1349 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); |
| 1350 | |
| 1351 | mutex_lock(&mspro_block_disk_lock); |
| 1352 | mspro_block_data_clear(msb); |
| 1353 | mutex_unlock(&mspro_block_disk_lock); |
| 1354 | |
| 1355 | mspro_block_disk_release(msb->disk); |
| 1356 | memstick_set_drvdata(card, NULL); |
| 1357 | } |
| 1358 | |
| 1359 | #ifdef CONFIG_PM |
| 1360 | |
| 1361 | static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) |
| 1362 | { |
| 1363 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1364 | unsigned long flags; |
| 1365 | |
| 1366 | spin_lock_irqsave(&msb->q_lock, flags); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1367 | blk_stop_queue(msb->queue); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1368 | msb->active = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1369 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 1370 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1371 | return 0; |
| 1372 | } |
| 1373 | |
| 1374 | static int mspro_block_resume(struct memstick_dev *card) |
| 1375 | { |
| 1376 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1377 | unsigned long flags; |
| 1378 | int rc = 0; |
| 1379 | |
| 1380 | #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME |
| 1381 | |
| 1382 | struct mspro_block_data *new_msb; |
| 1383 | struct memstick_host *host = card->host; |
| 1384 | struct mspro_sys_attr *s_attr, *r_attr; |
| 1385 | unsigned char cnt; |
| 1386 | |
| 1387 | mutex_lock(&host->lock); |
| 1388 | new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); |
| 1389 | if (!new_msb) { |
| 1390 | rc = -ENOMEM; |
| 1391 | goto out_unlock; |
| 1392 | } |
| 1393 | |
| 1394 | new_msb->card = card; |
| 1395 | memstick_set_drvdata(card, new_msb); |
| 1396 | if (mspro_block_init_card(card)) |
| 1397 | goto out_free; |
| 1398 | |
| 1399 | for (cnt = 0; new_msb->attr_group.attrs[cnt] |
| 1400 | && msb->attr_group.attrs[cnt]; ++cnt) { |
| 1401 | s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]); |
| 1402 | r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]); |
| 1403 | |
| 1404 | if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO |
| 1405 | && r_attr->id == s_attr->id) { |
| 1406 | if (memcmp(s_attr->data, r_attr->data, s_attr->size)) |
| 1407 | break; |
| 1408 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1409 | msb->active = 1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1410 | break; |
| 1411 | } |
| 1412 | } |
| 1413 | |
| 1414 | out_free: |
| 1415 | memstick_set_drvdata(card, msb); |
| 1416 | mspro_block_data_clear(new_msb); |
| 1417 | kfree(new_msb); |
| 1418 | out_unlock: |
| 1419 | mutex_unlock(&host->lock); |
| 1420 | |
| 1421 | #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */ |
| 1422 | |
| 1423 | spin_lock_irqsave(&msb->q_lock, flags); |
| 1424 | blk_start_queue(msb->queue); |
| 1425 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 1426 | return rc; |
| 1427 | } |
| 1428 | |
| 1429 | #else |
| 1430 | |
| 1431 | #define mspro_block_suspend NULL |
| 1432 | #define mspro_block_resume NULL |
| 1433 | |
| 1434 | #endif /* CONFIG_PM */ |
| 1435 | |
| 1436 | static struct memstick_device_id mspro_block_id_tbl[] = { |
| 1437 | {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO, |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1438 | MEMSTICK_CLASS_DUO}, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1439 | {} |
| 1440 | }; |
| 1441 | |
| 1442 | |
| 1443 | static struct memstick_driver mspro_block_driver = { |
| 1444 | .driver = { |
| 1445 | .name = DRIVER_NAME, |
| 1446 | .owner = THIS_MODULE |
| 1447 | }, |
| 1448 | .id_table = mspro_block_id_tbl, |
| 1449 | .probe = mspro_block_probe, |
| 1450 | .remove = mspro_block_remove, |
| 1451 | .suspend = mspro_block_suspend, |
| 1452 | .resume = mspro_block_resume |
| 1453 | }; |
| 1454 | |
| 1455 | static int __init mspro_block_init(void) |
| 1456 | { |
| 1457 | int rc = -ENOMEM; |
| 1458 | |
| 1459 | rc = register_blkdev(major, DRIVER_NAME); |
| 1460 | if (rc < 0) { |
| 1461 | printk(KERN_ERR DRIVER_NAME ": failed to register " |
| 1462 | "major %d, error %d\n", major, rc); |
| 1463 | return rc; |
| 1464 | } |
| 1465 | if (!major) |
| 1466 | major = rc; |
| 1467 | |
| 1468 | rc = memstick_register_driver(&mspro_block_driver); |
| 1469 | if (rc) |
| 1470 | unregister_blkdev(major, DRIVER_NAME); |
| 1471 | return rc; |
| 1472 | } |
| 1473 | |
| 1474 | static void __exit mspro_block_exit(void) |
| 1475 | { |
| 1476 | memstick_unregister_driver(&mspro_block_driver); |
| 1477 | unregister_blkdev(major, DRIVER_NAME); |
| 1478 | idr_destroy(&mspro_block_disk_idr); |
| 1479 | } |
| 1480 | |
| 1481 | module_init(mspro_block_init); |
| 1482 | module_exit(mspro_block_exit); |
| 1483 | |
| 1484 | MODULE_LICENSE("GPL"); |
| 1485 | MODULE_AUTHOR("Alex Dubov"); |
| 1486 | MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); |
| 1487 | MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); |